Metallic packing for piston-rods.



No. 832,068. PATENTED OCT. 2, 1906. J. H. LEWIS & L. G. KUNZER.

METALLIC PACKING FOR PISTON RODS.

APPLIOATION FILED NOV. 23, 1905.

circumference or break joints with each other. The inner leaf-or memberfof each segment is-furnisl'icd with a narrow or compression linger fthe extreme ed e of which abuts. snugly against the radial s ouldenf ofthe'next adjacent segment, thus forming a tight joint therewith, whileat the same time rocation of the piston.- are furnished w th aperipherally-extending permitting compression or upsetting of thisnarrow finger, and thus compensating for wear and permitting thesegments to con- :tract or come together as the inner periphery of thepacking-ring wears away the recip- All the segments F groove f toreceive a coiled spring-ringf, which surrounds the segmental metallicpacking-ring as a whole and serves to hold the sejments together.

The-division or T ring G is snugly clamped between the gland D and thepackinghead ring C and serves thus in connection with the ackin -headrin r C and "land 1) to form a tight chamber to receive the scgmen talpackingrings F and also to separate the segmental packing-rings F fromeach other. As illustrated in Fig.5 the division-ring G is made ofaright-angle form in cross-section,

" and the gland D is provided with an offset 'or shoulder d for thedivision-ring to abut against. In the construction illustrated in 1 1g.0 also the openmgs 1n the gland l) and packing-head ring C to receivethe piston are made large enough for the collar (1/ of the pistcn topass-through, and lfl-thlS'COHSlLIIlCtlOIl we consequently. employsupplemental or abutment segmental rings K, preferably made in twopartsor segments and held together by a coiled wire spring 72'. This enablesa piston having a collarto be passed through the gland. 1

We claim-;

1. In a metallic packing for piston-rods,

the combination with the cylinder-- head and piston-rod, of apacking-head ring C, gland D, diiision-ring G and a pair oi metallicsegmentalpacking-rings F F each comprising a plurality of segments,havingat their meeting ends double notches or o'llsets-in differ entplanes forming overlapping leaves, and

three joints at diflerent points of the circumference, one of whichoints extends only through one portion'of the radial thickness of thepackingq'mg and the other two of V which "joints extend each only partway .through the other portion of the radial thickness of thepacking-ring said segments being furnished on their iii per leaves ormembers. with a compression #fin er or member overlappedby the outerleai or' membe'rof the adjacent segment and serving by its upsetting orcompression to permit the seg,

ments to contract and compensate foreaoh,

other, substantially as specified.

2. In a metallic packing for piston-rods,

1 the combination with the cylinder-head and piston, of a packing-headring C, a gland D, a division-ring G fitting within said gland andbetween it and said ring 0 and a pair of segmental metallic packin-rings F F, one division-ring G.

fitting on each side of said and each comprising a plurality of segmentshaving overlappim leaves'or members at their meeting ends ormingaplurality of partial radial joints, substantially as specified.

3. In a metallic'packing for piston-rods,

the combination with the cylinder-head and piston, of a packing-head rinC, a gland D,

a division-ringv G fitting wit in said gland. and between it and saidring C and a pair of segmental metallic packing-rings F F, one fittingon'each side of sai and each comprising a plurality of segments havingoverlapping leaves or members at their meeting ends forming a pluralityof partial radial joints, said division-ring G.be-'

ing of a T shape in cross-section and its outer rim bemgclamped betweensaid gland D and ring C, substantially as specified.

4. In a metallic packing for piston-rods,

the combination with the cylinder-head. and

piston, of a packinghead ring C, a gland D, a division-ring G fittingwithm said gland and between it and said ring C and a pair of segmentalmetallic packing-rings F F, onefitting on each side of saiddivision-ring G and each'comprismg a plurality of" segments havingoverlappin leaves or members at their meeting ends orming a plurality ofpartial radial m nts, sald segments of each of said metallicpacking-rings being provided division-ring G.

